(1)已知∠A=56°,则∠A的余角等于______;(2)若∠β=70°49′,则∠β的补角为______

2025-01-31 23:00:35
推荐回答(1个)
回答1:

(1)∠A的余角等于90°-56°=34°;
(2)∠β的补角为180°-70°49′=109°11′.
故答案为:34°;109°11′.